What question did this study set out to answer?

To determine whether annexin A1 is required for calcium-triggered plasma membrane resealing and to characterize its localization during membrane repair.

September 20, 2006Journal of Biological ChemistryOpen Access

Requirement for Annexin A1 in Plasma Membrane Repair

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To determine whether annexin A1 is required for calcium-triggered plasma membrane resealing and to characterize its localization during membrane repair.
Inhibited annexin A1 function during plasma membrane injury using a specific blocking antibody, a small peptide competitor, and a calcium-binding-deficient dominant-negative mutant.
Tracked the spatial distribution and concentration of annexin A1 relative to membrane disruption sites during active resealing events.
Targeted inhibition of annexin A1 using function-blocking antibodies, competitor peptides, or dominant-negative mutants consistently suppressed plasma membrane resealing.
Annexin A1 concentrated specifically at disruption sites during resealing, demonstrating that local calcium influx recruits the protein to facilitate emergency membrane fusion.

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Implication

Experimental study demonstrates that annexin A1 drives calcium-triggered membrane resealing at cell injury sites, highlighting its essential role in emergency plasma membrane repair.

Cite This Study

McNeil et al. (2006) studied this question.

synapsesocial.com/papers/6a70b5efc92390ac2d07d2a2 https://doi.org/10.1074/jbc.m606406200

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Implication

Experimental study demonstrates that annexin A1 drives calcium-triggered membrane resealing at cell injury sites, highlighting its essential role in emergency plasma membrane repair.

Requirement for Annexin A1 in Plasma Membrane Repair

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Discussion

Implication

Cite This Study

Requirement for Annexin A1 in Plasma Membrane Repair

Key Points

Discussion

Implication

Cite This Study

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